H{sub 2}-HT Separation Using ''Cryogenic-Wall'' Thermal Diffusion Column with Heated-Tube
- Nagoya University (Japan)
The pressure dependence of separation factors of the columns for H{sub 2}-HT mixture was measured for practical design of 'cryogenic-wall' thermal diffusion columns for tritium handling system. Experiments were performed with 1,020 mm-height column with a 4.8 mm-outer-radius tube heated by hot-water and a 11.5 mm-inner-radius tube cooled by liquid nitrogen. The maximum total separation factor was 12.7 at 80 kPa for H{sub 2}-HT separation. By using another column with 9.53 mm-outer-radius tube heated by hot-water and a 14.2 mm-inner-radius tube, the separation factor was 64.4 at 144 kPa, and the separation will be larger at higher pressure.Comparison of numerical calculations of axial and radial two-dimensional flow and concentration distribution with experimental data revealed that our code could predict the pressure dependence of separation factor of the columns well.
- OSTI ID:
- 20849549
- Journal Information:
- Fusion Science and Technology, Vol. 44, Issue 2; Other Information: Copyright (c) 2006 American Nuclear Society (ANS), United States, All rights reserved. http://epubs.ans.org/; Country of input: International Atomic Energy Agency (IAEA); ISSN 1536-1055
- Country of Publication:
- United States
- Language:
- English
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